Fans rushed to the conclusion that the Sheezus star was casting shade on Jessie J's new single with Nicki Minaj and Ariana Grande.

Ms Allen tweeted: "Colabs are so f***ing thirsty these days, bait fan based cross pollination tactics, and there's a lot of it about. Eugh."

“Colabs are so f***ing thirsty these days, bait fan based cross pollination tactics, and there's a lot of it about. Eugh”

Lily Allen

The ex-Voice judge teamed up with the big-bootied rapper and the child actress for newest tune Bang Bang and if Twitter beef speculation is correct Lily Allen isn't a fan.

Her obvious dig at fellow chart singers was met with hostility, with many replying to say that the mum-of-two was simply jealous after her latest album flopped.

One angered Jessie J fan said: "Is it cross pollination to mention those with huge fan bases in your songs?"

CASTING SHADE: Lily sent out a bitter tweet, thought to be aimed at Jessie J [TWITTER]

While another viciously lashed out: "Jealous that you can't get a hit on your own?"

But some cyber surfers noticed the hypocrisy in Lily's latest argument: "Same could be said for your thirst and obsession over Miley Cyrus." Ouch, burn.

Alfie's sister is currently supporting the tweaking girl on her Bangerz tour – which we're pretty sure could be interpreted as the same sort of "cross pollination" she references.

The Not Fair hitmaker hasn't confirmed who her snide remark was aimed at, but we think she should be very afraid of throwing insults at projects involving Ms Minaj – we wouldn't want to mess with her...